Home / 20,352.48-30,476.88-13,405.92

Finding the Fourth Proportional to 20,352.48, 30,476.88 and 13,405.92

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Solution

The fourth proportional to 20,352.48, 30,476.88 and 13,405.92 is: 20,074.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,352.48 : 30,476.88 = 13,405.92 : x
  2. Step 2: Convert to fraction form
    20,352.48/30,476.88 = 13,405.92/x
  3. Step 3: Cross multiply
    20,352.48x = 30,476.88 × 13,405.92
  4. Step 4: Simplify right side
    20,352.48x = 408,570,615.13
  5. Step 5: Solve for x
    x = 408,570,615.13/20,352.48
  6. Step 6: Final answer
    x = 20,074.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.